From WikiLeaks

The CRS is a Congressional "think tank" with a staff of around 700. Reports are commissioned by members of Congress on topics relevant to current political events. Despite CRS costs to the tax payer of over $100M a year, its electronic archives are, as a matter of policy, not made available to the public.

Individual members of Congress will release specific CRS reports if they believe it to assist them politically, but CRS archives as a whole are firewalled from public access.

This report was obtained by Wikileaks staff from CRS computers accessible only from Congressional offices.

Two major issues or uncertainties may serve as economic constraints on such a major capital investment undertaking. The first is whether the price of natural gas over the long term will repay investment in a project now estimated to cost $25 billion or more, and which would not deliver gas to the major U.S. markets before 2017. Secondly, the price of steel, the material to be used in building a pipeline, has more than doubled since 2003, and may account for a significant share of increased cost estimates.